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(No Model-f) 2 Smets-shea 1. P. R. ESTLOW. :MOTOR MEGHANISM FR GARS.

Patented Apr. 19, 188

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I MOTOR MEGHANISM FOR GARS. No. 361,354. Pa ,tented'Apr. 191887.

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UNITED STATES.v

PATENT OFFICE.

FRANCIS ROBNO ESTLOV, OF BARNEGAT, NEV JERSEY.

MOTOR MYECHANISM FOR CARS.

SPECIFICATION forming part of Letters Patent No. 361,354, dated April 19, 1887. Application filed December 3|, V1886. Serial No. 223,091. (No model.)

To all whom t may concern:

Beit known that I, FRANoIs RoBNo EsrLow,

a citizen of the United States, residing at Barnegat, in the county of Ocean and State of New 5 Jersey, have invented a new and useful Improvement in Motor Mechanisms, of which the following isaspecification, reference beinghad to the accompanying drawings.

This invention relates to improvements in motor mechanisms, particularly in that class in which manual power is used to actuate a hand-car or other light machine.

The main object of the invention is to provide simple, effective, and inexpensive means whereby the main shaft of the machine can be rotated continuously. and uniformly in either direction and can have the direction of its rotation quickly and readily reversed.

rlhe invention consists, mainly, in causing two vertically-reciprocating rack-bars having their upward extensions pivoted, respectively, upon the opposite arms of a centrally-,pivoted lever to engage and disengage two similar meshing gear-wheels in such manner that the said wheels will rotatein one direction a third gear-wheel secured upon the main shaft of the machine.

It consists, also, in the means whereby either of the equalsized meshing gearwheels can be quickly and readily engaged with or disengaged from the gear-wheel on the main shaft, the action that engages one to the said gearwheel disengagingthe other.

The invention further consists in certain details of construction and 'arrangement hereinafter described, illustrated in the drawings, and pointed out in the claims appended.

In the annexed drawings, Figure l is a side elevation of a hand-car embodying my improvements. Fig. 2 is a central vertical longitudinal section of the same. Fig. 3 is a plan view of the device with the operating-lever removed, and Fig. 4 is a transverse sectional view taken on the line y y of Fig. 3.

Referring to the accompanying drawings, A designates the platform of a car of general rectangular shape, and having secured to its under surface, about centrally, the bearingblocks a a, in which the main shaft B is journaled, the said shaft having at its ends the wheels b and centrally upon it the gear-wheel b'.

If the car is intended to travel over turnpikes or ordinary roads, a third wheel, b2, is journaled in a bracket swiveled to and depending from the platform. This wheel serves as a steering-wheel, and is guided by suit-able mechanism under the control of the operator, and all the wheels are undanged.

If the car is intended to move over a tramway it must be provided with two sets of 6o flanged wheels.

Upon the upper surface of the platform A is secured a rectangular frame, C, having the longitudinal or side rails, c c, and the transverse end rails, c c, respectively.

. The side rails have secured upon their upper edges the inwardly-extending strips cac, which serve as guides in the grooves d iu the side rails of the movable frame-work D. The said framework is movable longitudinally within the frame C, and is composed of the grooved siderails, the end rails, d di, and the similar standards E E, which rise centrally from the side rails, and are united at top by a cross-bar, as shown.

` F F are intermcshin g gear-wheels, the shafts of which arejournaled in proper bearings,ff, on each side of the standards and equally distant therefrom. The said gear-wheels F F are -each adapted to mesh with the gear-wheel b on the main shaft; but both cannot engage at the same time. Ihe means by which one is thrown into engagement .therewith and the other disengaged therefrom is as follows:

G G are standards rising centrally from the ends of the frame-work D, and having respectivel y secured to their outward sides the vertical bracket-casings g g', as shown.

H H are detent-blocks, which respectively enter and are movable up and down in the casings g g.

Upon raising the block H and sliding the frame-work D in the direction of said block,the

- block E falls between the standard G and the .adjacent inner surface of the end rail, c2, of the frame C, and the gear-wheel F is moved into engagement with the gear-wheel b', while the gear-wheel F is disengaged therefrom. Y By reversing the process, the wheel F is engaged and the wheel F disengaged.

h h are pins or screws, which act as stops to prevent the blocks H H from being drawn out of position.

The frame-work, and consequently the gear- IOO wheels, are moved back and forth by means of the rectangnlarly-bent lever h', pivoted at an angle upon one of the standards E, and with the end of its vertical or downwardlyextending arm inserted in a recess or notch in a block, h2, secured to the side rail of the frame C.

I is a lever pivoted centrally upon a bar, li, which extends between the standards E, near their upper ends. Each arm of the said lever is of the same length, and each has, at an equal distance from the pivot-bar i, a vertical slot, i', in which the upper ends of the swinging bars J J are pivoted. To the lower ends of the said bars are respectively secured the vertical rack-bars K K, the former of which meshes with the gear-wheel F and the latter with the gear-wheel F.

L L are leaf-springs standing downward from the arms of the lever I, adjacent to and to the inner side of the bars J J, from which stand inward the headed pins or rods M lll', and pass through the longitudinal slots Z Z' in the said springs.

The rackbars K Ii are provided near their tops with the opposite notches N N, and their bottoms with the similar notches, N N', the notches being on the opposite sides of the bars and extending to but not into the rack-teeth.

O O are blocks forming part of the framework D, and standing inward from the lower ends of the standards G G. The inner ends of the blocks are vertically notched, as at o o, for the passage of the rack-bars when the latterarc being reciprocated, and the said notches have standing inward from their opposite sides the pins P I), of suitable length to pass easily through the notches N and N.

Now, suppose that the frame-work D is moved, as described, so as to canse the gearwheel F to mesh with the gear b on the main shaft. lThe rack-bar K meshes with the gearwheel F only when it moves upward, as at the lowestpointofitsdescent. ThespringLpressing against the head of the pin M, moves the rack-barK into engagement, the notehesN being then opposite the pins l? and passing over the same. The pins I then press against the outer surface of the raclebar and keep it in engagement till it reaches its highest point. The pins F are then oppositethenotchesl ,and the rack-bar is pushed outward by the action of the spring L on the bar J, the pins P pass ing through the notches N and resting on the h inner surface of the raek-bar,so as to keep it outof engagementin its descent; but while the rack-bar K is vdescending the rack-bar K is ascending, and, meshing with the gearwhee1 F,rotates the wheel F, which consequently rotates the gear b continuously and uniformlyin the same direction, thereby rotating the axle or main shaft of the machine.

By moving the frame-work D in themanner described,so as to engage the gear F with the gear b and disengage the gear F therefrom, the motion of the car is reversed,as the gears F and F rotate in opposite directions.

It will be readily understood that my motor can be used for other purposes than driving hand-cars, and that the power need not necessarily be applied to the lever I. For instance, by applying a weight and rope to the shaft B the machine will automatically operate a pump, the lever I being connected to the piston-rod of the pump.

Having thus described my invention, I claim- 1. In a motor mechanism, the combination of the lever pivoted centrally upon vertical standards, the rack-bars depending and swinging from the arms ofthe said lever, the intermeshing gear-wheels respectively engaging with said rack-bars when the latter move upward and disengaging from the same when moving downward, the gear-wheel on theaxle or main shaft of the machine arranged to engage with either of the said gear-wheels while disengaged from its fellow, and mechanism, substantially as described, whereby the reciprocatingrack-bars are thrown into engagement with the adjacent gear-wheels when beginning to ascend and out of engagement when beginning to descend, substantially as specified.

2. In a motor mechanism, the combination of the gear-wheel secured to the main shaft, the frame-work movable longitudinally on the platform of the machine, the intermeshing gear-wheels journaled on said platform in such manner that the movement of the same in one direction will engage one of its attached gearwheels with the gear-wheel on the main shaft and disengage the other attached gear-wheel therefrom, the lever pivoted centrally upon standards rising from the said frame-work,and the rack-bars depending and swinging from the arms of said lever and each arranged to engage the adjacent gear-wheel attached to the movable frame-work when ascending and to disengage from the same when descending, substantially as specified.

3. In a. motor mechanism, the combination, with the main shaft or axle, the gear-wheel scoured thereon, the frame-work movable longitudinally on the platform of the machine, and the similar ntermeshing gear-wheels having their shafts journaled on the frame-work and adapted to alternately engage with the gearwheel on the main shaft, of the lever pivoted centrally upon standards rising from the framework midway between the attached gearwheels, the rack-bars engaging during their ascent the adjacent gear-wheels, the bars having the rack-bars secured to their lower ends and their upper ends pivoted in slots in the arms of the lever, the headed rods or pins standing from said bars, and the slotted springs secured to the arms of the lever and arranged to engage the corresponding racks when ascending with the adjacent gear-wheels and disengage them therefrom when descending, substantially as specified.

4. In the herein-described maehine,the combination of the platform A,the frame C,secured thereon, the frame-work D, movable in said IOO IIO

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frame and provided with the standards G G', and the detent-lolocks H H', moving in the casings g g', secured to the standards G G', and the gear-wheel secured upon the axle or main 5 shaft B, and the gear-wheels F F', journaled upon the frame-work D, substantially as specifled.

5. In the hereindeseribed machine,the combination ofthe platform A,the frame @secured 1o thereto, the frame-work adapted to move 1on- /gitudinally in said frame and provided with the end standards, G G', the detent-bloeks H H', moving in the Casings g g', respectively, the

right-angled lever 71', pivoted on a standard x 5 rising from the frame-work, and the recessed 20 work, substantially as specified.

6. In the herein-described maehine,the conibination, with the gear-wheel on the main shaft, the movable frame-Work, and the intermeshing gear-wheels journaled thereon, all substantially as described, of the centrally-pivoted 25 lever provided with slots in its arms, the bars pivoted in said slots, the headed pins standing inward from said bars, the slotted springs seeured to the arms of the lever with the said rods or pins passing through their slots, and 3o the rack-bars provided with the sets of side notches, N and N', substantially as speeied.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

FRANCIS RGBNO ESTLOl/V.

W'itnesses:

CHAs. B. BROWN, AUGUsTUs M. Cox. 

